CVE-2026-3306

EUVD-2026-10742
An improper authorization vulnerability was identified in GitHub Enterprise Server that allowed a user with read access to a repository and write access to a project to modify issue and pull request metadata through the project. When adding an item to a project that already existed, column value updates were applied without verifying the actor's repository write permissions. This vulnerability was reported via the GitHub Bug Bounty program and has been fixed in GitHub Enterprise Server versions 3.14.24, 3.15.19, 3.16.15, 3.17.12, 3.18.6 and 3.19.3.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
GitHub_PCNA
4.3 MEDIUM
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 9%
Affected Products (NVD)
VendorProductVersion
githubenterprise_server
𝑥
< 3.14.24
githubenterprise_server
3.15.0 ≤
𝑥
< 3.15.19
githubenterprise_server
3.16.0 ≤
𝑥
< 3.16.15
githubenterprise_server
3.17.0 ≤
𝑥
< 3.17.12
githubenterprise_server
3.18.0 ≤
𝑥
< 3.18.6
githubenterprise_server
3.19.0 ≤
𝑥
< 3.19.3
𝑥
= Vulnerable software versions
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
githubgithub
3.14.0 ≤
𝑥
≤ 3.14.23
CNA
githubgithub
3.15.0 ≤
𝑥
≤ 3.15.18
CNA
githubgithub
3.16.0 ≤
𝑥
≤ 3.16.14
CNA
githubgithub
3.17.0 ≤
𝑥
≤ 3.17.11
CNA
githubgithub
3.18.0 ≤
𝑥
≤ 3.18.5
CNA
githubgithub
3.19.0 ≤
𝑥
≤ 3.19.2
CNA